Letters

Readers weigh in on how best to provide high-school graduates access to good-paying, higher-skilled jobs in the trades. Also, read about using Diamond Piers, and how retrofitting houses suits one remodeler's appreciation of history.

Business

Energy

Researchers monitor temperature and moisture in a house for three winters to see whether 12 inches of dense-blown cellulose would work as well as the same thickness of medium-density open-cell spray foam.